AlmaLinux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.6:CLSA-2026:1784888515)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784888515 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...

CentOS Linux 8.5 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS8.5:CLSA-2026:1784800609)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1784800609 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...

CentOS Linux 8.4 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-filesystem / etc (CENTOS8.4:CLSA-2026:1784800112)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1784800112 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...

AlmaLinux 9.2 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc (ALMALINUX9.2:CLSA-2026:1784647630)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784647630 advisory. - A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the...

PT-2026-99002

NGINX Plus and NGINX Open Source have a vulnerability in the ngx http v3 module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner...

PT-2026-99001

NGINX Plus and NGINX Open Source have a vulnerability in the ngx http v3 module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner...

Nginx Out-of-band Security Notification (July 15, 2026)

NGINX Security Advisory: NGINX Ingress Controller vulnerability CVE-2026-55723 NGINX Ingress Controller NGINX Ingress Controller vulnerability CVE-2026-52865 NGINX Ingress Controller NGINX Agent vulnerability CVE-2026-60062 NGINX Agent, NGINX Instance Manager NGINX map directive and regex matchin...

SUSE CVE-2026-90439

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

CVE-2026-90439: Heap-based Buffer Overflow

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

Important: nginx

Issue Overview: A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a...

ROS-20260803-73-0011

The vulnerability of the ngxhttpssimodule module in NGINX Plus and NGINX Open Source HTTP servers relates to the possibility of using memory after it is freed. Exploiting this vulnerability allows a remote attacker to modify the memory contents of the working process or cause service failures...

Exploit for Incorrect Authorization in F5 Nginx_Plus

🛡️ NGINX 2026 Multi-CVE CTI Investigation CVE-2026-28755...

PT-2026-65034

NGINX Plus and NGINX Open Source have a vulnerability in the ngx http proxy v2 module and ngx http grpc module modules. This vulnerability exists when the proxy http version to 2 or grpc pass directives are used to proxy HTTP/2 traffic, the ignore invalid headers directive is set to off, and the...

SUSE CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

UBUNTU-CVE-2026-42533

A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable i...

UBUNTU-CVE-2026-60005

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpslicemodule module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX...

UBUNTU-CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-42533

A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable i...

CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

K000161837: Out-of-band Security Notification (July 15, 2026)

Security Advisory Description On July 15, 2026, F5 announced the following security issues. This document is intended to serve as an overview of these vulnerabilities to help determine the impact to your F5 devices. You can find the details of each issue in the associated articles. Article CVE|...